A non-a priori approach to analyze electrical machines modeled by FEM connected to static converters

Author

Oliveira, A.M. ; Kuo-Peng, P. ; Sadowski, N. ; de Andrade, M.S. ; Bastos, J.P.A.

Author_Institution

Grupo de Concepcao e Analise de Dispositivos Eletromagneticos, Univ. Fed. de Santa Catarina, Florianopolis, Brazil

Volume

38

Issue

2

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

933

Lastpage

936

Abstract

This paper presents a method for direct coupling electrical machines, represented by two-dimensional (2-D) finite elements with the external circuit. The movement is taken into account by means of the moving band technique. The field and circuit equations are calculated automatically and then solved simultaneously using a time step procedure. The major contribution of this work is the fact that the whole system is calculated automatically, i.e., the electromagnetic field (Maxwell equations) and the converter circuit (Kirchhoff voltage and current laws and the elements characteristics equations) are strongly coupled in a unique set taking into account the movement. In order to validate the implemented procedure, a permanent magnet generator feeding a flyback converter is simulated and tested

Keywords

Maxwell equations; electromagnetic coupling; electromagnetic fields; finite element analysis; machine theory; permanent magnet generators; power convertors; FEM; Maxwell equations; circuit equations; electrical machines; external circuit; field equations; finite-element methods; flyback converter; moving band technique; permanent magnet generator; static converters; time step procedure; two-dimensional finite elements; Circuit simulation; Circuit testing; Coupling circuits; Electromagnetic coupling; Electromagnetic fields; Finite element methods; Maxwell equations; Permanent magnets; Two dimensional displays; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.996240

Filename

996240